SKU: CALSAF113-CM
MPN: SAF-113-CM
The SBC 4340 Forged Compstar Crank 3.480 Stroke by Callies is designed for serious small-block Chevrolet engine builders who seek maximum durability and performance. This forged crankshaft is ideal for racers, restomod enthusiasts, and builders of high-output street engines, transforming a stock or modified small-block platform into a reliable powerplant capable of high RPM operation and significant horsepower gains.
Constructed from 4340 forged steel, this crankshaft offers superior tensile strength and fatigue resistance compared to cast iron stock cranks. It is engineered to withstand extreme loads without cracking under detonation or sustained boost pressure. The 3.480-inch stroke is a traditional small-block Chevy specification, providing a balanced combination of displacement and RPM capability, although some applications may require custom piston/rod combinations.
Callies' precision manufacturing ensures strict tolerances on journal diameters, rod throw geometry, and counterweight placement, which are critical for engine balance and oil flow delivery. At a verified weight of 55 lbs, this crankshaft is consistent with OEM specifications, ensuring compatibility with standard harmonic balancers and avoiding the need for custom modifications.
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